Apparatus for correcting the swerving of the steering wheels of an automotive vehicle

Claim 1

APPARATUS FOR CORRECTING THE SWERVING OF THE STEERING WHEELS OF AN AUTOMOTIVE VEHICLE, CHARACTERIZED BY THE FACT THAT IT COMPRISES A SET OF TWO INDENTICAL LEGS WHICH CAN BE FITTED RESPECTIVELY TO THE RIM OF EACH OF THE STEERING WHEELS OF A VEHICLE WHICH HAS A TENDENCY TO SWERVE, EACH OF THE SAID LEGS COMPRISING A TUBE, THE LOWER END OF WHICH IS FASTENED TO A FOOT HAVING THE SHAPE OF A FORK WITH TWO ARMS, THE SAID FORK BEING PROVIDED WITH AN AIRBUBBLE LEVEL, AN ADJUSTABLE ARM SUPPORT CAPABLE OF SLIDING ALONG SAID TUBE, THE ENDS OF THE TWO FORK ARMS AND THE END OF ADJUSTABLE ARM BEING INTENDED TO BE ENGAGED BELOW THE CIRCULAR BEAD OF SAID RIM, RESPECTIVELY, IN THE CORNERS OF AN EQUILATERAL TRIANGLE, THE BASE CORNERS OF WHICH ARE REPRESENTED PHYSICALLY BY THE TIPS OF THE FORK, THE UPPER END OF THE SAID ROD BEING FASTENED IN AN A TUBULAR FERRULE FORMING THE SUPPORT OF A CAMBER-ANGLE INDICATOR, A POINTER RIGIDLY CONNECTED WITH THE SAID SUPPORT AND LOCATED PARALLEL TO THE LONGITUDINAL AXIS OF THE TUBULAR FERRULE, INDICATING THE VALVE OF THE SAID ANGLE ON A GRADUATED SCALE FASTENED TO THE INDICATOR, THE SAID INDICATOR BEING CAPABLE OF PIVOTING ON A TRANSVERSE PIN WHICH CONNECTS THE SUPPORT TO THE INDICATOR, THE UPPER PART OF THE INDICATOR BEING PRIVIDED WITH A SIGHTING TELESCOPE WITH COLLIMATOR AND A HORIZONTAL FLAT SURFACE OF CIRCULAR SHAPE IN CONTACT WITH A SIMILAR SURFACE PROVIDED ON THE LOWER PORTION OF A PART SERVING AS SUPPORT FOR A SIGHTING SCALE ORIENTED IN THE DIRECTION OF THE OTHER ADJUSTABLE LEG, THE UPPER PORTION OF THE SAID PART BEING PROVIDED WITH A COLLIMATOR TELESCOPE AND WITH AN AIR BUBBLE LEVEL, THE PART BEING CAPABLE OF PIVOTING ON A VERTICAL PIN CONNECTING THE TWO CIRCULAR SURFACES IN CONTACT WITH EACH OTHER, THE SAID PIN BEING FORMED OF A SCREW, THE SHANK OF WHICH IS ENGAGED IN A RETURN SPRING, ALL IN SUCH A MANNER THAT WHEN THE STEERING WHEEL OF THE VEHICLE IS PLACED IN NEUTRAL POSITION AND EACH LEG IS FITTED ON THE RESPECTIVE RIM OF THE STEERING WHEELS OF THE VEHICLE, THE COLLIMATOR OF THE UPPER TELESCOPE OF ONE OF THE LEGS IS ASJUSTED TO THE ZERO OF THE SIGHTING SCALE OF THE OTHER LEG, WHEREUPON THE COLLIMATOR OF THE UPPER TELESCOPE OF THE OTHER LEG IS ADJUSTED TO THE ZERO OF THE SIGHTING SCALE OF THE FIRST LEG SO AS TO OBTAIN A SIGHTING LINE PARALLEL TO THE AXLE OF THE SAID STEERING WHEELS; THEREUPON THE VALUES CORRESPONDING TO THE NEGATIVE OR POSITIVE TOE (TOE-IN OR TOEOUT) OF THE SAID WHEELS IS READ FROM THE COLLIMATORS OF EACH OF THE TELESCOPES OF THE CAMBER-ANGLE INDICATORS, AND THE ANGLE OF TOE IS CORRECTED BY MEANS TO THE STEERING MEMBERS PROVIDED FOR THIS PURPOSE IN ORDER TO CORRECT BY MEANS FOR THE LOWER TELESCOPES THE ZERO SIGHTINGS OF THE RESPECTIVE OPPOSITE SCALES.